/* Copyright (C) 2002-2016 Free Software Foundation, Inc.
   This file is part of the GNU C Library.

   The GNU C Library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Lesser General Public
   License as published by the Free Software Foundation; either
   version 2.1 of the License, or (at your option) any later version.

   The GNU C Library is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public
   License along with the GNU C Library.  If not, see
   <http://www.gnu.org/licenses/>.  */

#ifndef _BITS_PTHREADTYPES_H
#define _BITS_PTHREADTYPES_H	1

#include <endian.h>

#define __SIZEOF_PTHREAD_ATTR_T 36
#define __SIZEOF_PTHREAD_MUTEX_T 24
#define __SIZEOF_PTHREAD_MUTEXATTR_T 4
#define __SIZEOF_PTHREAD_COND_T 48
#define __SIZEOF_PTHREAD_COND_COMPAT_T 12
#define __SIZEOF_PTHREAD_CONDATTR_T 4
#define __SIZEOF_PTHREAD_RWLOCK_T 32
#define __SIZEOF_PTHREAD_RWLOCKATTR_T 8
#define __SIZEOF_PTHREAD_BARRIER_T 20
#define __SIZEOF_PTHREAD_BARRIERATTR_T 4

/* Thread identifiers.  The structure of the attribute type is not
   exposed on purpose.  */
typedef unsigned long int pthread_t;

union pthread_attr_t {
	char __size[__SIZEOF_PTHREAD_ATTR_T];
	long int __align;
};
#ifndef __have_pthread_attr_t
typedef union pthread_attr_t pthread_attr_t;
#define __have_pthread_attr_t	1
#endif

typedef struct __pthread_internal_slist {
	struct __pthread_internal_slist *__next;
} __pthread_slist_t;

/* Data structures for mutex handling.  The structure of the attribute
   type is not exposed on purpose.  */
typedef union {
	struct __pthread_mutex_s {
		int __lock;
		unsigned int __count;
		int __owner;
		/* KIND must stay at this position in the structure to maintain
		   binary compatibility.  */
		int __kind;
		unsigned int __nusers;
		__extension__ union {
			int __spins;
			__pthread_slist_t __list;
		};
	} __data;
	char __size[__SIZEOF_PTHREAD_MUTEX_T];
	long int __align;
} pthread_mutex_t;

/* Mutex __spins initializer used by PTHREAD_MUTEX_INITIALIZER.  */
#define __PTHREAD_SPINS 0

typedef union {
	char __size[__SIZEOF_PTHREAD_MUTEXATTR_T];
	long int __align;
} pthread_mutexattr_t;

/* Data structure for conditional variable handling.  The structure of
   the attribute type is not exposed on purpose.  */
typedef union {
	struct {
		int __lock;
		unsigned int __futex;
		__extension__ unsigned long long int __total_seq;
		__extension__ unsigned long long int __wakeup_seq;
		__extension__ unsigned long long int __woken_seq;
		void *__mutex;
		unsigned int __nwaiters;
		unsigned int __broadcast_seq;
	} __data;
	char __size[__SIZEOF_PTHREAD_COND_T];
	__extension__ long long int __align;
} pthread_cond_t;

typedef union {
	char __size[__SIZEOF_PTHREAD_CONDATTR_T];
	long int __align;
} pthread_condattr_t;

/* Keys for thread-specific data */
typedef unsigned int pthread_key_t;

/* Once-only execution */
typedef int pthread_once_t;

#if defined __USE_UNIX98 || defined __USE_XOPEN2K
/* Data structure for read-write lock variable handling.  The
   structure of the attribute type is not exposed on purpose.  */
typedef union {
	struct {
		int __lock;
		unsigned int __nr_readers;
		unsigned int __readers_wakeup;
		unsigned int __writer_wakeup;
		unsigned int __nr_readers_queued;
		unsigned int __nr_writers_queued;
#if __BYTE_ORDER == __BIG_ENDIAN
		unsigned char __pad1;
		unsigned char __pad2;
		unsigned char __shared;
		/* FLAGS must stay at this position in the structure to maintain
		   binary compatibility.  */
		unsigned char __flags;
#else
		/* FLAGS must stay at this position in the structure to maintain
		   binary compatibility.  */
		unsigned char __flags;
		unsigned char __shared;
		unsigned char __pad1;
		unsigned char __pad2;
#endif
		int __writer;
	} __data;
	char __size[__SIZEOF_PTHREAD_RWLOCK_T];
	long int __align;
} pthread_rwlock_t;

#define __PTHREAD_RWLOCK_ELISION_EXTRA 0

typedef union {
	char __size[__SIZEOF_PTHREAD_RWLOCKATTR_T];
	long int __align;
} pthread_rwlockattr_t;
#endif

#ifdef __USE_XOPEN2K
/* POSIX spinlock data type.  */
typedef volatile int pthread_spinlock_t;

/* POSIX barriers data type.  The structure of the type is
   deliberately not exposed.  */
typedef union {
	char __size[__SIZEOF_PTHREAD_BARRIER_T];
	long int __align;
} pthread_barrier_t;

typedef union {
	char __size[__SIZEOF_PTHREAD_BARRIERATTR_T];
	int __align;
} pthread_barrierattr_t;
#endif

#endif				/* bits/pthreadtypes.h */
